Which statements are true regarding the Cisco UCS fabric failover feature？ （）
- A FabricSync is used to synchronize MAC addresses to an adjacent fabric interconnect after a server interface failover.
- B Gratuitous ARPs are sent on fabric interconnect uplinks after a server interface failover.
- C Fabric failover can be used on vNICs and vHBAs.
- D Fabric failover is configured as part of the service profile.
- E Fabric interconnects in end-host mode use fabric failover instead of spanning tree to provide redundancy on uplink ports.